package com.sparrow.gate.config;

import com.sparrow.gate.redis.queue.RedisMsgListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.listener.PatternTopic;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;

@Configuration
//@EnableAsync
//@EnableAutoConfiguration
public class RedisQueueConfig
{
    private final static Logger logger = LoggerFactory.getLogger(RedisQueueConfig.class);

    @Autowired
    private RedisConnectionFactory redisConnectionFactory;

    @Autowired
    private TaskThreadPoolConfig config;

    @Bean
    public Executor myTaskAsyncPool() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(config.getCorePoolSize());
        executor.setMaxPoolSize(config.getMaxPoolSize());
        executor.setQueueCapacity(config.getQueueCapacity());
        executor.setKeepAliveSeconds(config.getKeepAliveSeconds());
        executor.setThreadNamePrefix(config.getThreadNamePrefix());
        //executor.setThreadNamePrefix("MyExecutor-");

        // rejection-policy：当pool已经达到max size的时候，如何处理新任务
        // CALLER_RUNS：不在新线程中执行任务，而是由调用者所在的线程来执行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.initialize();
        return executor;
    }

    @Bean
    RedisMessageListenerContainer container(Executor executor)
    {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(redisConnectionFactory);
        container.addMessageListener(new RedisMsgListener(), new PatternTopic("chat1"));
        container.addMessageListener(new RedisMsgListener(), new PatternTopic("chat2"));
        container.addMessageListener(new RedisMsgListener(), new PatternTopic("chat3"));
        container.setTaskExecutor(executor);
        //container.setTaskExecutor();
        //Math.abs()
        return container;
    }

//    @Bean
//    StringRedisTemplate template()
//    {
//        return new StringRedisTemplate(redisConnectionFactory);
//    }

//    @Bean
//    MessageListenerAdapter listenerAdapter(Receiver receiver)
//    {
//        return new MessageListenerAdapter(receiver, "receiveMessage");
//    }

//    @Bean
//    Receiver receiver(CountDownLatch latch)
//    {
//        return new Receiver(latch);
//    }
//
//    @Bean
//    CountDownLatch latch()
//    {
//        return new CountDownLatch(1);
//    }


}
